text: //////////////////////////////////////////////////////////////////////////////////////////////////
  //	Copyright (c) 2010 Harry Pidcock
  //
  //	Permission is hereby granted, free of charge, to any person obtaining a copy
  //	of this software and associated documentation files (the "Software"), to deal
  //	in the Software without restriction, including without limitation the rights
  //	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  //	copies of the Software, and to permit persons to whom the Software is
  //	furnished to do so, subject to the following conditions:
  //
  //	The above copyright notice and this permission notice shall be included in
  //	all copies or substantial portions of the Software.
  //
  //	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  //	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  //	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  //	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  //	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  //	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  //	THE SOFTWARE.
  //////////////////////////////////////////////////////////////////////////////////////////////////
  
  #ifndef __CUTIL_H__
  #define __CUTIL_H__
  
  class CEngine;
  
  class CUtil : public CSingleton<CUtil>
  {
  public:
  	CUtil(void) : m_flCurrentTime(0.0f), m_flDeltaTime(0.0f)
  	{
  	};
  
  	float CurTime(void)
  	{
  		return m_flCurrentTime;
  	};
  
  	float DeltaTime(void)
  	{
  		return m_flDeltaTime;
  	};
  
  protected:
  	friend class CEngine;
  	
  	void UpdateTime(float delta)
  	{
  		m_flDeltaTime = delta;
  		m_flCurrentTime += delta;
  	};
  
  	void Reset(void)
  	{
  		m_flDeltaTime = 0.0f;
  		m_flCurrentTime = 0.0f;
  	};
  
  private:
  	float m_flCurrentTime;
  	float m_flDeltaTime;
  };
  
  #endif // __CUTIL_H__